CN108980312A - Slewing with protection knife - Google Patents

Slewing with protection knife Download PDF

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Publication number
CN108980312A
CN108980312A CN201810371742.3A CN201810371742A CN108980312A CN 108980312 A CN108980312 A CN 108980312A CN 201810371742 A CN201810371742 A CN 201810371742A CN 108980312 A CN108980312 A CN 108980312A
Authority
CN
China
Prior art keywords
knife
shell
rotor
slewing
gas passageway
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810371742.3A
Other languages
Chinese (zh)
Other versions
CN108980312B (en
Inventor
D·S·巴斯
J·S·特纳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deere and Co
Original Assignee
Deere and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deere and Co filed Critical Deere and Co
Publication of CN108980312A publication Critical patent/CN108980312A/en
Application granted granted Critical
Publication of CN108980312B publication Critical patent/CN108980312B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
    • A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
    • A01B33/14—Attaching the tools to the rotating shaft, e.g. resiliently or flexibly-attached tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0047—Hubs characterised by functional integration of other elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0073—Hubs characterised by sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/30—Increase in
    • B60B2900/321—Lifetime
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/20—Land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race

Abstract

The present invention relates to a kind of slewings of band protection knife.The slewing includes shell, rotor and face seal.The rotor is installed into be rotated relative to the shell.The shell and rotor cooperation are to provide annular gas passageway between the shell and the rotor.The face seal is configured to be connected to the annular gas passageway, and establishes and be tightly connected between the shell and the rotor, to stop clast to invade from the annular gas passageway.The shell or the rotor include knife, and the knife part limits the annular gas passageway, to cut the clast that can enter the annular gas passageway.The slewing can be for example used in shaft assembly or hub reduction gear.

Description

Slewing with protection knife
Technical field
This disclosure relates to slewing, and in particular it relates to the slewing with face seal.
Background technique
It is broken that the working truck (for example, four-wheel driven loader, crawler crane) of working site can be potentially encountered viscosity Bits, these sticky clasts can be wrapped on the axle of working truck and damage the face seal of axle.For example, as it is known that feedlot In baling twine and refuse landfill in magnetic recording tape be wrapped on axle and tighten, thus pass through labyrinth lead to face sealing Part, this causes face seal to leak.
Summary of the invention
According to one aspect of the disclosure, slewing includes shell, rotor and face seal.The rotor is installed into It is rotated relative to the shell.The shell and rotor cooperation are between the offer annular between the shell and the rotor Gap channel.The face seal is configured to be connected to the annular gas passageway, and the shell and the rotor it Between establish be tightly connected, to stop clast to invade from the annular gas passageway.The shell or the rotor include knife, described Knife part limits the annular gas passageway, to cut the clast that can enter the annular gas passageway.The slewing can Such as in shaft assembly or hub reduction gear.
According to description below and attached drawing, the above and other feature be will be apparent.
Detailed description of the invention
To the detailed description reference attached drawing of attached drawing, in which:
Fig. 1 is the perspective view for showing the slewing with shell and rotor for being configured as such as axle；
Fig. 2 is the cross-sectional view intercepted along the line 2-2 of Fig. 1；
Fig. 3 is the cross-sectional view for showing the magnification region of Fig. 2, wherein has clearance channel between shell and rotor, and has There is the face seal for being configured to be connected to clearance channel, rotor includes for cutting the clast possibly into clearance channel Knife；
Fig. 4 is the elevation for showing knife；
Fig. 5 be along the elevation of the rotation axis of rotor, show knife (it is clear in order to illustrate, the diameter of rotor is not shown Internally part)；
Fig. 6 is the elevation of cross-section, shows the alternative constructions of the knife with flat cutting edge；
Fig. 7 is analogous to the cross-sectional view of Fig. 2, shows the second embodiment that shell includes knife；
Fig. 8 is the cross-sectional view for showing the magnification region of Fig. 7；
Fig. 9 is the elevation for showing the knife of second embodiment；
Figure 10 be shown along the elevation of shell rotation axis second embodiment knife (it is clear in order to illustrate, and The radial inner portion of shell is not shown)；And
Figure 11 is the elevation of cross-section, shows the substitution structure of the knife of the second embodiment with flat cutting edge It makes.
Specific embodiment
Referring to Fig.1, slewing 10 including shell 12 and is installed into the rotor 14 rotated relative to shell 12.Rotation is set Standby 10 are for example shown as the axle assembly of four-wheel driven loader, wherein shell 12 and rotor 14 are constructed separately as axle The axle housing and axle of component.Slewing 10 can take various configurations, and hub reduction gear is another example.Rotation Turning equipment 10 can be used for such as working truck (four-wheel driven loader and crawler crane, this is only two examples) Or in the various applications of other vehicles, wherein axle assembly is for example fixed relative to vehicle frame or can vibrate.
Referring to Fig. 2 and Fig. 3, slewing 10 includes face seal 16.Shell 12 and the cooperation of rotor 14 are in 12 He of shell Annular gas passageway 18 is provided between rotor 14.Face seal 16 is configured to be connected to clearance channel 18, and in shell 12 It establishes and is tightly connected between rotor 14, to stop clast to invade from clearance channel 18.Rotor 14 includes that part restriction gap is logical The knife 20 in road 18, knife 20 are used to cut the clast that can enter clearance channel 18, so that between the clast of cutting can be more easily detached from Slewing 10 (for example, under the action of centrifugal force or gravity) is left in gap channel 18, thus protects face seal 16.
It is close that face seal 16 is configured as the axial face for example including first annular component 22a and the second annular construction member 22b Sealing.Each of first annular component 22a and the second annular construction member 22b include 24 He of sealing ring for example made of metal The compressible biasing ring 26 made of such as elastic material (for example, fluoroelastomer, hydrogenated butyronitrile diene rubber (HNBR)).Biasing Each of ring 26 is accepted and is compressed in be limited between corresponding sealing ring 24 and corresponding shell 12 or a part of rotor 14 In fixed depression (biasing ring 26 is shown at its relaxed state, it is to be understood that, they will be when rotor apparatus 10 assembles It is compressed).The cross section for biasing the relaxed state of ring 26 can variously be configured.For example, cross section can be such as institute The circle (for example, on four-wheel driven loader or other application) or general rectangular shown is (for example, mounted in crawler type lifting On machine or other application), this is only for two examples.Bias ring 26 respectively by sealing ring 24 against each other, with establish sealing Connection.Axis 28 with rotor 14 around rotor 14 rotates, and the sealing ring 24 of first annular component 22a is against the second annular structure The sealing ring 24 of part 22b slides.
Slewing 10 includes the bearing 30 near face seal 16.Face seal 16 is configured to that clast is stopped to invade Bearing 30, to protect bearing 30.
Rotor 14 includes axis 32 and flange 34.Axis 32 is installed into via bearing 30 and other one or more bearing (examples Such as, another bearing near the other end of axis 32) it is rotated in shell 12 around axis 28.Flange 34 prolongs from axis 32 is radial It stretches, and knife 20 is installed in flange 34.Knife 20 is axially inwardly projecting towards shell 12 far from flange 34.Face seal 16 is radial It is arranged between knife 20 and axis 32.
Shell 12 includes ring-shaped depression 36.Knife 20 is ring-shaped and protrudes into ring-shaped depression 36, so that knife 20 and recess 36 is (Fig. 3) axially opposite each other relative to axis 28.The cross section of knife 20 and recess 36 is correspondingly generally V-shaped.Clearance channel 18 include labyrinth 38.Labyrinth 38 is provided because knife 20 protrudes into recess 36.
Referring to Fig. 4 and Fig. 5, knife 20 includes zigzag cutting edge 40.Knife 20 can have pit, to provide saw for endless knife 20 Tooth form cutting edge 40.For example, knife 20 includes multiple pits 42, the radially inner side of zigzag cutting edge 40 is arranged in pit 42.? In another embodiment, knife 20 includes the zigzag cutting edge 40 without pit.
Referring to Fig. 6, in yet another embodiment, knife 20 may include that the annular planar of zigzag cutting edge 40 is replaced to cut Cut sword 40a (without pit).
Referring to Fig. 7 and Fig. 8, slewing 110 is similar with slewing 10, unlike, shell 12 including knife rather than Rotor 14 includes knife.In this way, some in the appended drawing reference used in conjunction with slewing 10 are desirably combined into slewing 110.
Shell 12 includes the knife 120 that part limits clearance channel 118, and knife 120 is for cutting possibly into clearance channel 118 Clast so that the clast of cutting can more easily be detached from clearance channel 118 leave slewing 110 (for example, in centrifugal force or Under the action of gravity).Shell 12 includes axially external portion, and knife 120 is installed in the axially external portion.Knife 120 is far from shell The axially external portion of body 12 is extending axially outward towards shell 12.Face seal 16 is radially arranged between knife 120 and axis 32.
Flange 34 includes ring-shaped depression 136.Knife 120 is ring-shaped and protrudes into ring-shaped depression 136, so that 120 He of knife Recess 136 is (Fig. 8) axially opposite each other relative to axis 28.The cross section of knife 120 and recess 136 is correspondingly generally V-shaped.Between Gap channel 118 includes labyrinth 138.Labyrinth 138 is provided because knife 120 protrudes into recess 136.
Referring to Fig. 9 and Figure 10, knife 120 includes zigzag cutting edge 140.Knife can have pit, to provide sawtooth for knife 120 Shape cutting edge 140.For example, knife 120 includes multiple pits 142, the radially inner side of zigzag cutting edge 140 is arranged in pit 142. In another embodiment, knife 120 includes the zigzag cutting edge without pit.
Referring to Fig.1 1, in yet another embodiment, knife 120 may include the annular flat for replacing zigzag cutting edge 140 Smooth cutting edge 140a (without pit).
Knife 20,120 is configured to cut possibly into clearance channel 18,118 and may occupy on face seal 16 Clast.As above it implies, slewing 10,110 can be the axle assembly on working truck (or other vehicles).Operation Van May working site encounter often be wrapped on slewing 10,110 and enter clearance channel 18,118 bale packing Line, magnetic recording tape or other clasts.If these clasts start to do so, knife 20,120 is configured to become tightly to wrap up in clast It face seal and damages and cuts clast before face seal 16.As rotor 14 is rotated around its axis 28, centrifugal force is often It will cause the clast after cutting and be detached from clearance channel 18,118, and gravity will carry out class in the downside band of slewing 10,110 As effect.
Although illustrating and describing the disclosure in detail in attached drawing and above description, this is illustrated and description is recognized To be substantially not limiting.It is to be understood that expectation is protected all changes form fallen into the spirit of the disclosure and is repaired Reshaping formula.It will be noted that the alternate embodiments of the disclosure may not include shown or described all features.This field it is general Logical technical staff can be readily contemplated by one that the one or more features comprising the disclosure and fall into the spirit of appended claim With the implementation of itself in range.

Claims (13)

1. a kind of slewing, the slewing include:
Shell；
Rotor, which is installed into rotates relative to the shell, and the shell and rotor cooperation are in the shell Annular gas passageway is provided between the rotor；And
Face seal, the face seal are configured to be connected to the annular gas passageway, and in the shell and described turn It establishes and is tightly connected between son, to stop clast to invade from the annular gas passageway, the shell or the rotor include knife, The knife part limits the annular gas passageway, to cut the clast that can enter the annular gas passageway.
2. slewing according to claim 1, wherein the other of the shell and the rotor include that annular is recessed It falls into, and the knife protrudes into the ring-shaped depression.
3. slewing according to claim 2, wherein the cross section pair of the cross section of the knife and the ring-shaped depression It is substantially V-shaped with answering.
4. slewing according to claim 2, wherein the annular gas passageway includes at least partly because of the knife The labyrinth provided in the ring-shaped depression is provided.
5. slewing according to claim 2, wherein the rotation of the knife and the ring-shaped depression relative to the rotor Shaft axis is axially opposite each other.
6. slewing according to claim 1, wherein the knife is ring-shaped.
7. slewing according to claim 1, wherein the knife includes zigzag cutting edge.
8. slewing according to claim 7, wherein the knife includes the radial direction that the zigzag cutting edge is arranged in Multiple pits of inside.
9. slewing according to claim 1, wherein the knife includes flat cutting edge.
10. slewing according to claim 1, wherein the rotor includes axis, and the axis is set in a manner of revolvable It sets in the shell, and the face seal is radially arranged between the knife and the axis.
11. slewing according to claim 1, wherein the shell includes the knife.
12. slewing according to claim 1, wherein the rotor includes the knife.
13. slewing according to claim 12, wherein the rotor includes axis and flange, and the axis is can rotate Mode it is disposed in the housing, the flange is radially extended from the axis, and the knife is installed in the flange.
CN201810371742.3A 2017-05-30 2018-04-24 Rotary equipment with protective knife Active CN108980312B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/607,722 2017-05-30
US15/607,722 US10694653B2 (en) 2017-05-30 2017-05-30 Rotary apparatus with protective knife

Publications (2)

Publication Number Publication Date
CN108980312A true CN108980312A (en) 2018-12-11
CN108980312B CN108980312B (en) 2023-05-05

Family

ID=64459445

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810371742.3A Active CN108980312B (en) 2017-05-30 2018-04-24 Rotary equipment with protective knife

Country Status (4)

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US (1) US10694653B2 (en)
CN (1) CN108980312B (en)
BR (1) BR102018008536B1 (en)
DE (1) DE102018205918A1 (en)

Families Citing this family (1)

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CA3077758A1 (en) * 2019-04-15 2020-10-15 Cnh Industrial America Llc Variable angle disc hub for a tiller jump arm assembly

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US6019443A (en) * 1998-02-02 2000-02-01 Freeman; Ernie Debris cutter for sprocket drive
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US20100078896A1 (en) * 2008-09-29 2010-04-01 Deere & Company Face seal break-in compound
US8657296B1 (en) * 2011-10-26 2014-02-25 Engineered Seal Products, Inc. Radial shaft seal
JP2014200739A (en) * 2013-04-04 2014-10-27 三菱重工環境・化学エンジニアリング株式会社 Seal structure and crushing device including the seal structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295532A (en) * 1979-11-02 1981-10-20 Acra-Plant, Inc. Planter with cooperating trash clearing discs
US6019443A (en) * 1998-02-02 2000-02-01 Freeman; Ernie Debris cutter for sprocket drive
WO2007055365A1 (en) * 2005-11-14 2007-05-18 Komatsu Ltd. Rolling wheel mechanism for construction machine and drive wheel mechanism for construction machine
US20090085303A1 (en) * 2005-11-14 2009-04-02 Komatsu Ltd. Rotating wheel mechanism of construction machine and drive wheel mechanism of construction machine
US20100078896A1 (en) * 2008-09-29 2010-04-01 Deere & Company Face seal break-in compound
US8657296B1 (en) * 2011-10-26 2014-02-25 Engineered Seal Products, Inc. Radial shaft seal
JP2014200739A (en) * 2013-04-04 2014-10-27 三菱重工環境・化学エンジニアリング株式会社 Seal structure and crushing device including the seal structure

Also Published As

Publication number Publication date
CN108980312B (en) 2023-05-05
BR102018008536A2 (en) 2019-01-15
BR102018008536B1 (en) 2023-03-28
US20180347562A1 (en) 2018-12-06
DE102018205918A1 (en) 2019-01-17
US10694653B2 (en) 2020-06-30

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